The following is an attempt to list all-comers records (fastest performance attained within a country without regard for the nationality of the runner) for all nations using a consistent set of standards. Records reflect performances in the ARRS database. Since the ARRS database only tracks runners who have met certain time standards, there will be all-comers records that are excluded from these lists since they do not meet the criteria for inclusion in the database.
All-comers records for nations are for countries as they are presently constituted. Records for countries that have split, such as Czechoslovakia (splitting into CZE and SVK) will reflect the location of the race according to present political boundaries, e.g. races held in Prague are eligible for CZE records and not SVK records, while races held in Kosice are eligible for SVK records and not CZE records, regardless of the year in which the race was held.
Record quality performances are those made on standard (loop) courses that are believed to be accurate. Point-to-point courses are defined as those courses whose start and finish lie more than 30% of the race distance apart and/or whose drop exceeds 1 meter per kilometer. If the drop is less than 5 meters per kilometer, performances are considered statistically valid. Such performances are included if they are better than the standard course mark (or if there is no standard course mark) and have an "a" appended to the time, indicating these are potentially aided performances. Performances on point-to-point courses whose drop exceeds 5 meters per kilometer are not considered statistically valid and are not included.
Indoor Track Records - Marks achieved on indoor tracks of 200 meters or less are included. Times to hundredths of seconds are auto-times; times to tenths of seconds are hand times.
Outdoor Track Records - Times to hundredths of seconds are auto-times; times to tenths of seconds are hand times.